Is a blank detail specification applicable to electromechanical all-or-nothing telecom relays of assessed quality. Selects the appropriate methods of test to be used in detail specifications and contains basic test schedules to be used in the preparation of such specifications. The contents of the corrigendum of June 2002 have been included in this copy.
IEC 61811-55 Ed. 2.0 en:2002 History
IEC 61811-55 Ed. 2.0 en:2002
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